PHL - IDA

$185 Find Cheap Flights from Philadelphia to Idaho Falls - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$359
Typical prices: $474-$679
Delta
Tue 1/30Thu 2/8
PHL - IDA • 1 stop
Cheapest one-way
$185
Typical prices: $275-$392
Alaska Airlines
Fri 10/19
PHL - IDA • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Philadelphia and Idaho Falls. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
December
Cheapest • 15% price drop
August
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Seattle/Tacoma Intl (SEA)
Cheapest • Avg $503 (round-trip)
Denver Intl (DEN)
Shortest trip • 7h 15m (one-way)
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Idaho Falls!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Philadelphia to Idaho Falls (PHL-IDA)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Philadelphia to Idaho Falls

Sat, Jan 30 - Mon, Feb 8
Delta Logo
7:00 am - 12:27 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
7h 27m1 stop Salt Lake City
Delta Logo
6:45 pm - 5:41 amIDA  Idaho Falls Fanning Field-PHL Philadelphia
8h 56m1 stop Salt Lake City
$359Delta
Thu, Nov 19 - Thu, Nov 26
United Airlines Logo
10:00 am - 3:38 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
7h 38m1 stop Denver Intl
United Airlines Logo
10:35 am - 7:31 pmIDA  Idaho Falls Fanning Field-PHL Philadelphia
6h 56m1 stop Denver Intl
$359United Airlines
Tue, Oct 27 - Fri, Oct 30
Alaska Airlines Logo
7:02 am - 3:20 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
10h 18m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:09 am - 5:38 pmIDA  Idaho Falls Fanning Field-PHL Philadelphia
9h 29m1 stop Seattle/Tacoma Intl
$359Alaska Airlines
Sat, Jan 30 - Mon, Feb 8
Delta Logo
7:00 am - 12:27 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
7h 27m1 stop Salt Lake City
Delta Logo
6:45 pm - 5:41 amIDA  Idaho Falls Fanning Field-PHL Philadelphia
8h 56m1 stop Salt Lake City
$379Delta
Sat, Jan 30 - Mon, Feb 8
Delta Logo
7:00 am - 12:27 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
7h 27m1 stop Salt Lake City
Delta Logo
6:45 pm - 9:27 amIDA  Idaho Falls Fanning Field-PHL Philadelphia
12h 42m2 stops Salt Lake City Atlanta Hartsfield-Jackson
$384Delta
Thu, Nov 19 - Thu, Nov 26
United Airlines Logo
6:15 am - 3:38 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
11h 23m2 stops Chicago O'Hare Intl Denver Intl
United Airlines Logo
10:35 am - 7:31 pmIDA  Idaho Falls Fanning Field-PHL Philadelphia
6h 56m1 stop Denver Intl
$387United Airlines
Mon, Oct 19 - Fri, Oct 23
Alaska Airlines Logo
7:02 am - 3:20 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
10h 18m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
1:58 pm - 5:41 amIDA  Idaho Falls Fanning Field-PHL Philadelphia
13h 43m1 stop Seattle/Tacoma Intl
$389Alaska Airlines
Wed, Nov 18 - Fri, Nov 27
United Airlines Logo
7:45 am - 1:28 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
7h 43m1 stop Denver Intl
United Airlines Logo
2:35 pm - 11:39 pmIDA  Idaho Falls Fanning Field-PHL Philadelphia
7h 04m1 stop Denver Intl
$429United Airlines
Sat, Jan 30 - Mon, Feb 8
American Airlines Logo
10:31 am - 9:52 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
13h 21m2 stops Charlotte Douglas Dallas/Fort Worth
American Airlines Logo
6:22 am - 7:40 pmIDA  Idaho Falls Fanning Field-PHL Philadelphia
11h 18m2 stops Phoenix Sky Harbor Intl Charlotte Douglas
$658American Airlines
Thu, Nov 19 - Thu, Nov 26
American Airlines Logo
1:53 pm - 10:31 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
10h 38m2 stops Charlotte Douglas Phoenix Sky Harbor Intl
American Airlines Logo
8:00 am - 9:45 amIDA  Idaho Falls Fanning Field-PHL Philadelphia
23h 45m2 stops Dallas/Fort Worth Boston Logan Intl
$658American Airlines
Booking Insights

Price, demand and travel trends for Philadelphia to Idaho Falls flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Philadelphia to Idaho Falls with more confidence.

How much is a round-trip flight from Philadelphia to Idaho Falls?

Round-trip flights from Philadelphia to Idaho Falls start at $359. Prices are below average for this route right now, with typical round-trip fares ranging from $474 to $679. The lowest price found in the past 5 days was $359 on Delta.

What's the cheapest day of the week to fly from Philadelphia to Idaho Falls?

Friday is the cheapest day of the week to fly from Philadelphia to Idaho Falls, it is 8% cheaper than the average day. Sunday is the most expensive day with flight prices 32% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from Philadelphia to Idaho Falls?

  • December is the cheapest month to fly from Philadelphia to Idaho Falls at $468 round-trip.
  • October ($715) and July ($675) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 52% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for Philadelphia to Idaho Falls flights

Low season

January

Cheapest flight

$185
Best time to beat the crowds but there is an average 3% increase in price.
Flight from Philadelphia to Idaho Falls

When to book flights from Philadelphia to Idaho Falls

Are your dates flexible? Find out the best times to travel from Philadelphia to Idaho Falls based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Philadelphia to Idaho Falls flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Philadelphia to Idaho Falls?

    Flights from Philadelphia to Idaho Falls usually depart from Philadelphia (PHL) and arrive at Idaho Falls Fanning Field (IDA).

  • What cabin classes can I book on flights from Philadelphia to Idaho Falls?

    Two cabin classes are available on flights from Philadelphia to Idaho Falls:

    • Economy Class
    • First Class

  • Which airports do connecting flights from Philadelphia to Idaho Falls pass through?

    One-stop flights from Philadelphia to Idaho Falls most commonly connect through:

    • Denver Intl (DEN) - 40% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 27% of one-stop connections
    • Salt Lake City (SLC) - 18% of one-stop connections
    • Dallas/Fort Worth (DFW) - 7% of one-stop connections

    Denver Intl (DEN) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Philadelphia to Idaho Falls?

    Yes. Being flexible with your travel dates can save you up to 30% on the Philadelphia to Idaho Falls route. Friday is the cheapest departure day at $511 round-trip on average, while Sunday is the most expensive at $730, a difference of $219. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How long is a flight from Philadelphia to Idaho Falls?

    A nonstop flight from Philadelphia to Idaho Falls takes 0h 00m, covering 1,899 miles.

  • Do I need a passport to fly from Philadelphia to Idaho Falls?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from Philadelphia to Idaho Falls changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $359 to $2,331. That means the highest observed fare was about 6x higher than the lowest one.

  • How are flight prices from Philadelphia to Idaho Falls looking right now?

    One-way fares from Philadelphia to Idaho Falls are currently higher than usual. Average one-way flight prices are about $702, which is 87% above the typical average for this route.

  • How much time can I save by choosing a different layover airport from Philadelphia to Idaho Falls?

    Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 7h 15m, compared with 7h 23m via Chicago O'Hare Intl (ORD) and 8h 17m via Dallas/Fort Worth (DFW).

  • What is the time difference between Philadelphia and Idaho Falls?

    Idaho Falls is 2 hours behind Philadelphia (Mountain Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Idaho Falls Fanning Field Airport (IDA)?

    Idaho Falls Fanning Field Airport (IDA) hosts 5 major car rental companies, with daily rates starting from around $34 for economy cars. Top options include:
    · Alamo
    · Hertz
    · Enterprise Rent-A-Car
    · Budget
    · National

  • How much should I expect to pay for a Philadelphia to Idaho Falls flight?

    Round-trip flights from Philadelphia to Idaho Falls range from $474 to $679, with an average of $552 over the past 12 months. Anything below $474 counts as a good deal.

Your guide to booking Philadelphia to Idaho Falls flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Friday departure instead of Sunday. On this route, Friday flights average $511 - about $219 less than Sunday (30% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Philadelphia to Idaho Falls trip for December. Fares historically average $468 round-trip in that month - typically $247 less than the most expensive month, which is October (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Idaho Falls Fanning Field Airport.
    - Tru by Hilton Idaho Falls
    - Fairfield Inn & Suites by Marriott Idaho Falls
    - Hampton Inn Idaho Falls/Airport

More options for your flight from Philadelphia to Idaho Falls

Complete your trip to Idaho Falls with a hotel stay or car rental

Car rentals in Idaho Falls
Hotels in Idaho Falls
Vacations in Idaho Falls